While camping at Carter Caves State Park in Kentucky we had to resort to filling our fresh water tank and using the pump to create enough volume at the faucets and shower heads.
When I fill the fresh water tank there is a loud chattering/buzzing noise while filling. I am fairly certain that the noise isn't the pump. When filling, it takes a very long time to fill the tank even with 40-50 psi of pressure available.
I am wondering if the air admittance valve on top of the fresh water tank is defective or perhaps there is some kind of restrictor behind the white wet bay panel.
1. I am hearing the chattering noise on the wet bay side. Restriction or Water filter acting as a restriction?
2. Because it takes an eternity to fill the tank. Water filter?
I also can see evidence (water on top of the tank near the valve) of the valve leaking whenever I fill the tank more than 3/4 full and travel. Could these things be related or is there a restriction on the input side that would slow tank filling? I really need to get this addressed and need some advice.
I have already repiped the overflow to prevent syphoning (our coach did that) by raising the pipe 18" and looping it back down to the overflow drain pipe that goes through the basement floor.
You can see the valve I am talking about immediately to the left of the anti-syphon piping I installed.
Any help would be appreciated as my basement floor becomes more damaged as time goes by.